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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:31:44 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:31:44 -0800 |
commit | 9066cfe9886ac131c34d59ed0e2d287b0e3c0087 (patch) | |
tree | d88beb88001f2482911e3d28e43833b50e4b4e97 /core/java/android/webkit/FileLoader.java | |
parent | d83a98f4ce9cfa908f5c54bbd70f03eec07e7553 (diff) | |
download | frameworks_base-9066cfe9886ac131c34d59ed0e2d287b0e3c0087.zip frameworks_base-9066cfe9886ac131c34d59ed0e2d287b0e3c0087.tar.gz frameworks_base-9066cfe9886ac131c34d59ed0e2d287b0e3c0087.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'core/java/android/webkit/FileLoader.java')
-rw-r--r-- | core/java/android/webkit/FileLoader.java | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/core/java/android/webkit/FileLoader.java b/core/java/android/webkit/FileLoader.java new file mode 100644 index 0000000..54a4c1d --- /dev/null +++ b/core/java/android/webkit/FileLoader.java @@ -0,0 +1,136 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package android.webkit; + +import com.android.internal.R; + +import android.content.Context; +import android.content.res.AssetManager; +import android.net.http.EventHandler; +import android.net.http.Headers; +import android.os.Environment; + +import java.io.File; +import java.io.FileInputStream; + +/** + * This class is a concrete implementation of StreamLoader that uses a + * file or asset as the source for the stream. + * + */ +class FileLoader extends StreamLoader { + + private String mPath; // Full path to the file to load + private Context mContext; // Application context, used for asset loads + private boolean mIsAsset; // Indicates if the load is an asset or not + private boolean mAllowFileAccess; // Allow/block file system access + + /** + * Construct a FileLoader with the file URL specified as the content + * source. + * + * @param url Full file url pointing to content to be loaded + * @param loadListener LoadListener to pass the content to + * @param context Context to use to access the asset. + * @param asset true if url points to an asset. + * @param allowFileAccess true if this WebView is allowed to access files + * on the file system. + */ + FileLoader(String url, LoadListener loadListener, Context context, + boolean asset, boolean allowFileAccess) { + super(loadListener); + mIsAsset = asset; + mContext = context; + mAllowFileAccess = allowFileAccess; + + // clean the Url + int index = url.indexOf('?'); + if (mIsAsset) { + mPath = index > 0 ? URLUtil.stripAnchor( + url.substring(URLUtil.ASSET_BASE.length(), index)) : + URLUtil.stripAnchor(url.substring( + URLUtil.ASSET_BASE.length())); + } else { + mPath = index > 0 ? URLUtil.stripAnchor( + url.substring(URLUtil.FILE_BASE.length(), index)) : + URLUtil.stripAnchor(url.substring( + URLUtil.FILE_BASE.length())); + } + } + + @Override + protected boolean setupStreamAndSendStatus() { + try { + if (mIsAsset) { + try { + mDataStream = mContext.getAssets().open(mPath); + } catch (java.io.FileNotFoundException ex) { + // try the rest files included in the package + mDataStream = mContext.getAssets().openNonAsset(mPath); + } + } else { + if (!mAllowFileAccess) { + mHandler.error(EventHandler.FILE_ERROR, + mContext.getString(R.string.httpErrorFileNotFound)); + return false; + } + + mDataStream = new FileInputStream(mPath); + mContentLength = (new File(mPath)).length(); + } + mHandler.status(1, 1, 0, "OK"); + + } catch (java.io.FileNotFoundException ex) { + mHandler.error( + EventHandler.FILE_NOT_FOUND_ERROR, + mContext.getString(R.string.httpErrorFileNotFound) + + " " + ex.getMessage()); + return false; + + } catch (java.io.IOException ex) { + mHandler.error(EventHandler.FILE_ERROR, + mContext.getString(R.string.httpErrorFileNotFound) + + " " + ex.getMessage()); + return false; + } + return true; + } + + @Override + protected void buildHeaders(Headers headers) { + // do nothing. + } + + + /** + * Construct a FileLoader and instruct it to start loading. + * + * @param url Full file url pointing to content to be loaded + * @param loadListener LoadListener to pass the content to + * @param context Context to use to access the asset. + * @param asset true if url points to an asset. + * @param allowFileAccess true if this FileLoader can load files from the + * file system. + */ + public static void requestUrl(String url, LoadListener loadListener, + Context context, boolean asset, boolean allowFileAccess) { + FileLoader loader = new FileLoader(url, loadListener, context, asset, + allowFileAccess); + loader.load(); + } + +} |